Hi, So I got a free Early 2006 iMac with a Core Duo, 2GB RAM, and a 160GB HD. After I tried (and succeeded) to remove the firmware password and install OS X 10.6.8, now I’m having a new problem. After a completely fresh install of SL, the computer boots (fairly quickly for its age) and gets to the desktop, but everything will be completely frozen (except the mouse). After waiting about 10-20 minutes, the computer finally starts to work again. Occasionally on boot up the computer will just show a blue screen for 10-20 minutes with no mouse instead. The next problem is sleeping. When the computer goes to sleep at any point, you will not be able to wake it. The sleep LED will be on but pressing the power button/moving the mouse will do nothing to it. AFAIK it won’t wake from sleep at all, it may just take 10-20 minutes but I haven’t tested that yet. When in safe mode, it works fine, no waiting. I also did a HDD test and all is well there. So what could it be? Follow up question: I want to upgrade the CPU. It’s currently a 1.83GHz Core Duo (Not Core 2 Duo, a CORE Duo, really old). What processor is supported in an early 2006 17” iMac? Also, how easy is it to open? I’ve opened newer macs with the magnetic screen before, so I’m fairly skilled, I’m just hoping this’ll be easier?